Start with the right workspace
Open your preferred coding assistant or 3D tool. Use the model shown on the example as a starting point, and check any linked project for setup instructions.
Claude Opus 5.5Reference brief
The Last Train cyberpunk megacity benchmark
A prompt BuilderHelm says they gave to Opus 5.5 for building a complete cyberpunk megacity in Blender, including a hero train, procedural city architecture, elevated rails, atmospheric effects, cinematic cameras, and an animated sequence.
About this example
A starting brief based on the creator's public project, not a verbatim original prompt. Your result will vary.
cyberpunk megacityBlenderhero trainprocedural architectureelevated rail systemsvolumetric atmospherecinematic lightinganimated sequence
The prompt
build a complete cyberpunk megacity inside Blender with a hero train, procedural architecture, elevated rail systems, rain, volumetric atmosphere, cinematic lighting, multiple camera setups, and a full animated sequence.
How to use this prompt
Choose one thing to change
Swap the subject, art style or setting. Keep the camera and interaction clear. Build a small version first, then refine one detail at a time.
Give the scene its own assets
For a custom character or prop, create a 3D model from a short object description or reference image, then bring it into your project.
Previews belong to their respective creators. Check the original source and project license before reusing code or assets.